DIGITAL LIBRARIES:
- Europeana:
https://www.europeana.eu/portal/pl
- Federation of Digital Libraries (Poland):
https://fbc.pionier.net.pl/
- Polona – Digital Library of the National Library in Warsaw:
https://polona.pl/
- Digital Library of the University of Wrocław:
https://www.bibliotekacyfrowa.pl/dlibra
Other digital libraries: